JP6974914B2 - Vehicle structure - Google Patents

Description

The present invention relates to a vehicle structure comprising a striker for locking a vehicle door.
The door in the present invention is not limited to doors for getting on and off such as side doors and back doors of vehicles, but is a broad concept including, for example, an engine hood and a hood of a trunk room.

As an example of the vehicle structure, there is one described in Patent Document 1.
In the vehicle structure described in the document, a striker for engaging with the back door when the back door is closed is attached to the lower back constituting the lower edge portion of the rear opening of the vehicle. The lower back is further provided with a plate-shaped striker rain hose for reinforcing the mounting location of the striker. The lower back has a hollow shape (closed cross-section structure) in which a lower back inner member having a bent cross section and a lower back outer member are flanged together. The striker rain hose is provided as a bridge from the front part to the rear part of the lower back, and both front and rear ends thereof are welded to the lower back.

According to such a configuration, the striker mounting portion of the lower back is efficiently reinforced by the striker rain hose. Since the striker rain hose is a bridge from the front to the rear of the lower back, it suppresses deformation around the striker mounting location when, for example, a rear collision of the vehicle occurs and a relatively large load is applied to the lower back. It is effective. If the area around the striker mounting location is significantly deformed, the opening and closing of the back door will be hindered, but according to the above configuration, such a problem can be suppressed.

However, in the past, there was a problem to be solved as described below.

That is, when the striker rain hose is provided on the lower bag, the striker rain hose may not be provided as a bridge from the front part to the rear part of the lower bag due to production reasons or other various circumstances. In such a case, the reinforcing effect of the striker rain hose will be greatly reduced, and the area around the striker mounting location will be greatly deformed by the load input such as the rear collision of the vehicle, which may hinder the opening and closing of the back door. be.
As a means to prevent this, it is conceivable to make the striker rain hose thicker or to additionally provide another reinforcing member, but if such a means is adopted, the weight increases and the weight is increased. Productivity deteriorates, leading to an increase in manufacturing costs.

Japanese Unexamined Patent Publication No. 2013-189114

The present invention has been conceived under the above-mentioned circumstances, and provides a vehicle structure capable of appropriately and rationally reinforcing the vicinity of a striker mounting portion of a hollow member such as a lower back with a striker rain hose. That is the issue.

In order to solve the above problems, the following technical means are taken in the present invention.

The vehicle structure provided by the present invention is formed in a hollow shape using a plurality of panel members, and is joined to each other in the vertical height direction as a means for connecting the plurality of panel members, and is horizontal. A hollow member having at least a pair of flanges extending in a direction and to which a striker for locking a vehicle door is attached, and a pair of ends disposed in the hollow member. comprises of the striker reinforcement hose to the flange portion is not bonded state, and a vehicle structure, the said end close region of the striker reinforcement hose, stepped pressing portion upper surface portion recessed downward Is provided, and as a portion corresponding to both side wall portions of this step push portion, the striker rain hose is bent so as to protrude downward from other general portions, and the lower end portions are connected to each other via the lower wall portion. It is provided with at least a pair of bent wall portions provided in a horizontally spaced arrangement in which the pair of flange portions extend, and each of the bent wall portions is located on the inner side of the pair of flange portions. In addition, a part of the pair of flanges protrudes above and below the joint portion, and is characterized in that it faces the joint portion in the horizontal direction.

With such a configuration, the following effects can be obtained.
First, among the hollow members, the joint portion of the pair of flange portions and the peripheral portion thereof have higher rigidity than the other general portions of the hollow member, and are less likely to be deformed when a load is applied. Is. On the other hand, according to the present invention, at least a pair of bent wall portions are provided in the region near the end of the striker rain hose so as to face the joint portion of the pair of flange portions described above, so that when a vehicle collides, etc. When a load input is generated in the hollow member, the bent wall portion is appropriately received by the joint portion of the pair of flange portions and the peripheral portion thereof so that the striker rain hose is not significantly deformed or displaced. Is possible. Therefore, it is possible to suppress deformation around the mounting location of the striker and to prevent problems such as hindering the opening and closing of the door.
Secondly, the configuration intended by the present invention is effective as a countermeasure when the ends of the striker rain hose cannot be joined by sandwiching them between the pair of flange portions of the hollow member, and the productivity is improved. It is possible to have flexibility.
Thirdly, it is not necessary to make the striker rain hose considerably thicker or to provide an additional reinforcing member as a means for suppressing the deformation around the attachment portion of the striker. Although the striker rain hose has at least a pair of bent wall portions, the bent wall portions can be easily and inexpensively formed by bending the striker rain hose, and the weight is significantly increased. There is no increase. As a result, according to the present invention, it is possible to suitably achieve weight reduction of the vehicle, improvement of productivity, reduction of manufacturing cost, and the like.

Other features and advantages of the invention will become more apparent from the following description of embodiments of the invention with reference to the accompanying drawings.

It is a main part external perspective view which shows an example of the vehicle structure which concerns on this invention. FIG. 2 is a sectional view taken along line II-II of FIG. (A) is a partially broken perspective view of the lower back shown in FIG. 2, and (b) is a sectional view taken along line IIIb-IIIb of (a). (A), (b), the Ri sectional view showing another example of the present invention, (c) is a Ru sectional view showing another example of the striker a reinforcement.

Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
In the drawings, the arrow Fr indicates the front of the vehicle, the arrow W indicates the vehicle width direction, and the arrow Up indicates the upper direction in the vehicle height direction.

The vehicle structure A shown in FIGS. 1 and 2 is provided with a back door opening 10 at the rear portion of the vehicle V, which is opened and closed by a back door 1 whose upper portion is rotatably supported, and the back door opening is provided. It includes a lower back 2 located at the lower edge of the portion 10, a striker 3 attached to the lower back 2, and a striker rain hose 4. In the drawings, reference numeral 80 is
It is a rear bumper.

The lower back 2 corresponds to an example of the "hollow member" in the present invention, and has a hollow shape extending in the vehicle width direction. As shown in FIGS. 2 and 3, the lower back 2 is configured by combining a lower back inner panel 2a and a lower back outer panel 2b. The lower back inner panel 2a has a gutter shape with an open upper surface, and substantially horizontal or inclined front and rear flange portions 23a and 24a are connected to the upper ends of the front wall portion 21 and the rear wall portion 22. It is set up. The lower back outer panel 2b has a so-called hat-shaped cross-sectional shape whose basic shape is flat, and has substantially horizontal or inclined front and rear flange portions 23b and 24b. The pair of flange portions 23a and 23b on the front side and the pair of flange portions 24a and 24b on the rear side are in opposite contact with each other and are joined by means such as spot welding. However, the pair of flange portions 24a and 24b on the rear side are joined to each other with the rear end portion 4b of the striker rain hose 4 sandwiched between them. On the other hand, the front end portion 4a of the striker rain hose 4 is not sandwiched between the pair of flange portions 23a and 23b on the front side, and is not joined to these portions. The details of the correspondence between the striker rain hose 4 and the pair of flange portions 23a and 23b will be described later.

The striker 3 is provided so as to have an upward protruding posture on the upper surface of the lower back 2. More specifically, the base of the striker 3 is supported by the bracket 30, and the bracket 30 is fixed on the upper wall portion 25 of the lower back outer panel 2b. However, the striker rain hose 4 is provided and joined to the lower side of the upper wall portion 25 in an overlapping arrangement, and the bracket 30 is also supported by the striker rain hose 4. The striker rain hose 4 is provided with a welding nut 49 for fastening and fixing the bracket 30 by using a bolt (not shown), and the upper wall portion 25 of the lower back outer panel 2b is for inserting the bolt. A hole (not shown) is provided. The back door 1 is provided with a lock device 18 provided with a lock piece 18a that engages with the striker 3 when the back door 1 is closed.

The striker rain hose 4 has a substantially plate shape having a rectangular shape in a plan view, and is formed by pressing a metal plate. In the region near the front end portion 4a of the striker rain hose 4, a stepped push portion 40 (bead portion) whose upper surface portion is recessed downward is provided, and both side wall portions of the step push portion 40 form the striker rain hose 4. It is the first bent wall portion 41 bent in the thickness direction of the hose. Further, a second bent wall portion 42 having a downward bending shape is provided on one end edge side of the striker rain hose 4 in the left-right width direction (the same direction as the vehicle width direction).

The first and second bent wall portions 41 and 42 are both portions corresponding to specific examples of the "bent wall portion" in the present invention. The front surfaces of the first and second bent wall portions 41 and 42 are located on the inner side of the pair of flange portions 23a and 23b on the front side, and the pair of flange portions 23a and 23b are located in the front-rear direction of the vehicle. It faces the joint (matching surface portion) and its peripheral portion. Here, the "peripheral portion" corresponds to the region near the proximal end of the flange portion 23b in the lower back outer panel 2b and the region near the proximal end of the flange portion 23a in the lower back inner panel 2a. In the present embodiment, the lengths of the flange portions 23a and 23b in the vehicle front-rear direction are different, and the region Sb is closer to the first and second bent wall portions 41 and 42 than the region Sa. ..

Next, the operation of the vehicle structure A described above will be described.

For example, when the vehicle V causes a rear collision and a load in a substantially horizontal direction acts on the lower back 2 and the lower back 2 is compressed in the same direction, the first and second bent wall portions of the striker rain hose 4 The front portions of 41 and 42 first come into contact with the region Sb near the proximal end of the flange portion 23b, and the deformation / displacement of the striker rain hose 4 is suppressed. When the load is large, the first and second bent wall portions 41 and 42 are further displaced to the front of the vehicle while compressing and deforming the region Sb near the proximal end of the flange portion 23b, and the base of the flange portion 23a. It also comes into contact with the end vicinity region Sa and the joint portion of the pair of flange portions 23a and 23b.

Here, the pair of flange portions 23a and 23b and their peripheral portions have high rigidity in the horizontal direction as compared with other general portions of the lower back 2, and are portions that are not easily deformed. Similarly, the first and second bent wall portions 41 and 42 are portions that are unlikely to be deformed in the horizontal direction. Therefore, when the first and second bent wall portions 41 and 42 come into contact with the flange portions 23a and 23b and their peripheral portions, the striker rain hose 4 does not easily deform. It will be firmly received by the flange portions 23a and 23b and their peripheral portions, and will not be significantly displaced toward the front side of the vehicle. As a result, deformation around the mounting portion of the striker 3 is also suppressed. If the periphery of the mounting portion of the striker 3 is greatly deformed, for example, the lock piece 18a cannot be detached from the striker 3, and it becomes difficult to open the back door 1 properly. In, it is possible to appropriately avoid such a problem. As described above, the first and second bent wall portions 41 and 42 do not suddenly come into contact with the joint portions of the flange portions 23a and 23b at the time of load input, but are in the vicinity of the base end of the flange portions 23b before that. Since it abuts on the region Sb, it is possible to improve the absorption performance of the input load.

When the striker rain hose 4 is set in the lower back 2, the front end portion 4a of the striker rain hose 4 may not be joined to the pair of flange portions 23a and 23b due to production circumstances or other various circumstances. be. On the other hand, the vehicle structure A of the present embodiment is suitable for such a case and is excellent in flexibility.

According to this embodiment, it is not necessary to make the striker rain hose 4 thicker as a means for suppressing deformation around the attachment portion of the striker 3. Further, it is not necessary to separately use a special reinforcing member different from the striker rain hose 4. Therefore, it is possible to appropriately reduce the weight, improve the productivity, and reduce the manufacturing cost.

FIG. 4 shows another embodiment of the present invention. In the figure, the same or similar elements as those in the embodiment are designated by the same reference numerals as those in the embodiment, and duplicate description will be omitted.

In the striker rain hose 4 shown in FIG. 4A, although the bent wall portion 41 (first bent wall portion 41) is provided, the portion corresponding to the second bent wall portion 42 of the embodiment is Not provided. Even with such a configuration, the bending wall portion 41 abuts on the joint portion and the peripheral portion of the pair of flange portions 23a and 23b of the lower back 2, thereby obtaining an effect of suppressing deformation around the mounting portion of the striker 3. It is possible. In the present invention, both the first and second bent wall portions 41 and 42 may not be provided.

The striker rain hose 4 shown in FIG. 4B is formed in a corrugated cross section, and is provided with a large number of bent wall portions 41. If a large number of bent wall portions 41 are provided, it is possible to increase the contact area when a large number of bent wall portions 41 abut on the joints of the flange portions 23a and 23b. Therefore, it is suitable for preventing a large contact pressure from acting intensively on a small area portion.

In the striker rain hose 4 shown in FIG. 4 (c), a pair of bent wall portions 42 (corresponding to or approximate to the second bent wall portion 42 of the above embodiment) are provided. ing. Even with such a configuration, it is possible to bring the pair of bent wall portions 42 into contact with a predetermined portion.

The present invention is not limited to the contents of the above-described embodiments. The specific configuration of each part of the vehicle structure according to the present invention can be variously redesigned within the scope of the present invention.

In the above-described embodiment, the region near the proximal end of the flange portion 23b of the lower back 2 Sb is located closer to the rear of the vehicle than the region near the proximal end of the flange portion 23a and is provided close to the striker rain hose 4. However, the present invention is not limited to this, and the arrangement of the two regions Sa and Sb may be in the opposite positional relationship to the above, and further, the two regions Sa and Sb are in the vehicle front-rear direction. It is also possible to configure the configuration so that the position is not displaced.

In the above-described embodiment, the front end portion 4a of the striker rain hose 4 is in a non-bonded state to the pair of flange portions 23a and 23b, and the rear end portion 4b is in a bonded state to the pair of flange portions 24a and 24b. However, the present invention is not limited to this. Contrary to the above, the front end portion 4a of the striker rain hose 4 may be joined to the pair of flange portions 23a and 23b, and the rear end portion 4b may be joined to the pair of flange portions 24a and 24b. In this case, an upright wall portion intended by the present invention is provided on the rear end portion 4b side of the striker rain hose 4, and the upright wall portion faces the joint portion of the pair of flange portions 24a and 24b and the peripheral portion thereof. It should be arranged. Further, in the present invention, both the front end portion 4a and the rear end portion 4b of the striker rain hose 4 may be in a non-bonded state to the pair of flange portions 23a and 23b and the flange portions 24a and 24b. Also, the configuration intended by the present invention can be adopted.

The hollow member referred to in the present invention is not limited to the lower back. As described at the beginning, since the door in the present invention is a broad concept including a side door, a hood, and the like, the hollow member to which the striker is attached can be a hollow member other than the lower back.

A Vehicle structure V Vehicle Sa, Sb Area near the base end of the flange 1 Back door (door)
2 Lower back (hollow member)
23a, 23b Pair of flanges 3 Striker 4 Striker rain hose 4a Front end (end of striker rain hose)
41 First bent wall part 42 Second bent wall part

Claims (1)

As a means for connecting the plurality of panel members in a hollow shape using a plurality of panel members, at least a pair of flange portions that are joined to each other facing each other in the vertical height direction and extend in the horizontal direction are provided. And a hollow member to which a striker for locking the vehicle door is attached.
A striker rain hose disposed in the hollow member and having an end portion not joined to the pair of flange portions.
The vehicle structure is equipped with
In the region near the end of the striker rain hose, a step push portion having a downwardly recessed upper surface portion is provided.
As a portion corresponding to both side wall portions of this stepped portion, the striker rain hose is bent so as to protrude downward from the other general portion, and the lower end portions are connected to each other via the lower wall portion. It is provided with at least a pair of bent walls provided in a horizontally spaced arrangement in which the flanges of the hose extend.
Each of the bent wall portions is located on the inner side of the pair of flange portions, and is horizontal to the joint portion in such a manner that a part of the bent wall portions protrudes above and below the joint portion of the pair of flange portions. A vehicle structure characterized by facing in a direction.

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